Whirlpool 761883306 manual Venting requirements, Now start, Vented installation

Venting requirements

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Fire Hazard

Venting system must terminate to the outside.

Do Not vent exhaust air into spaces within walls or ceilings or into attics, crawl spaces or garages.

Use metal duct only.

Do Not use four-inch laundry-type wall caps.

Do Not use plastic ductwork.

Flexible metal duct is Not recommended. If it is used, calculate each foot of flexible metal duct as two feet of straight duct. Flexible metal elbows count twice as much as standard elbows.

Do Not use to exhaust hazardous or explosive materials and vapors.

Failure to follow these instructions could result in a fire.

Ductwork needed for insfallofion is not included. Wall or roof caps used must have backdrafl damper.

Determine which outside venting method needs to be used NOTE: If a non-vented

(recirculating) installation is desired, follow instructions on Panel D.

The length of the ductwork and number of elbows should be kept to a minimum to provide efficient performance. The size of the ductwork should be uniform. Do Not install two elbows together. Use duct tape to seal all joints in the ductwork system. Ductwork can terminate either through the roof or wall. Use caulking to seal exterior wall or roof opening around exhaust hood. For the most efficient and quiet operation, it

is recommended that the range be vented vertically through the roof through 7” round ductwork.

Figures l-4 show common venting methods and what types of materials are needed.

Vertical Roof Venting

roof cap

7” round through t roof

damper locatec?- as far from hood as possible

Horizontal Wall Venting

3-l/&x 10” throuah the wall

I cap

Figure 3 A

7” min.	diameter
round ductwork
	. *I...	-.-m..---l				wall cap
elbow			:	:‘I-’		.:
			I	I*\		J
3-1/4”x	10” to round	‘.{	I	I	l t	l\
				a.
ductwork	transition			-:,,--’
			:.--

Figure 4

Recommended ductwork length

Use 3-l /4” x 10” or 7” ductwork with a m’aximum length of 26 feet for ductwork system. For best performance, use no more Wan three 90” elbows. To calculate the length of system you need, add the equivalent feet for each ductwork piece used in the system. See the following examples.

3- l/4” x 10” ductwork system

3 - 114” x 10” H-		6 ft.
elbow
03-*7ft’ Maximum1- 90” elbowIenLth						wall cap
					= 265ftfeet
u	8 feet		straight		=	8ft.
	1 -	wall		cap	=	Oft.
	Length			of	=	13 ft.
	3- l/4”		x	10” system

Recommended standard fittings

3-114” x 10” 90”	3-114” x 10” flat	3-l/4” x 10” wail
elbow = 5 ft.	elbow = 12 ft.	cap=oft.

Now start...

With range hood in kitchen.

Slide cardboard or hardboard under range before moving range across floor to prevent damaging floor covering.

Cover countertop, cooktop or set-in range with a thick, protective covering to prevent damaging countertop.

I 1 Put on safety glasses and gloves.

2 n Disconnect and move freestanding range from cabinet opening to provide easier access to upper cabinet and rear wall. Put a thick, protective covering over cooktop, set-in range or countertop to protect from damage or dirt

3 H Determine which venting method (roof or wall venting or non-venting) you need to use. This range hood is shipped for non-vented installation.

If non-venting (recirculating) installation is desired, follow instructions on Panel D.

Vented installation

vent baffle

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F

4 W Remove screws from vent baffle on top of range hood. Remove vent baffle.

in

top of range hood so that the word “Vented” is facing up. Fasten vent baffle with screws.

7” ductwork system

knockouts

6 n Remove knockout from the wiring opening (top or rear) to be used.

Figure 1

Vertical Roof Venting

ro/f cap

3-114” x 10” through the roof

3-114” x 10” damper

Figure 2

/	Maximum			length	= 26 feel
3-1/4”x 10”
to 7”	1	-	transition		=	4,5	ft
transition
	2	-	90”	elbows	=lO		ft.
	8	feet straight			=	8	ft.
	1 -		wall	cap	=	0	ft.

Length of 7” system = 22.5 ft

Recommended standard fittings

3-114” x IO” to	3-114” x 10” to 7”	7” to 3-114” x 10”
7” = 4.5 ft.	90” elbow = 5 ft.	90” elbow = 9 ft.

90” elbow =	7” to 3-114”	;“,“;lbow = I’;wtizll cap
5 ft.	xlO”=lft.	.	.

For rectangular venting, remove only the 3-l/4” x 10” rectangular opening knockout.

For round ductwork venting through roof, remove both opening knockouts.

terminal box

n Remove terminal box cover from range hood

Panel B